Sure but it's a service business like consultancy rather than a startup business where you might be able to scale rapidly. Plus it comes with other complexitie

Sure but it's a service business like consultancy rather than a startup business where you might be able to scale rapidly. Plus it comes with other complexities, it's very easy for your staff to leave and start competing services taking many of your customers and your candidates with them. Most recruiting firms have tighter computer lockdowns than banks because of this, they often do crazy things like have their contact/CV management system served over citrix as images to prevent employees walking off with the data.